import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome'
import Users from '../components/user/Users'
import Rights from '../components/power/rights.vue'
import Roles from '../components/power/roles.vue'


Vue.use(VueRouter)

const routes = [
  {
    path:'/',
    redirect:'/login'
  },
  {
    path:'/login',
    component:Login
  },
  {
    path:'/home',
    component:Home,
    redirect:'/welcome',
    children:[
      {
        path:'/welcome',
        component:Welcome
      },
      {
        path:'/users',
        component:Users
      },
      {
        path:'/rights',
        component:Rights
      },
      {
        path:'/roles',
        component:Roles
      },
    ]
  },
 
]

const router = new VueRouter({
  routes
})

router.beforeEach((to,from,next)=>{
  //next('/login') 强制跳转
  //如果访问的是登录页面 就放行
  if(to.path==='/login') return next()
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  //如果没有token就强制跳转登录
  if(!tokenStr) return next('/login')
  //有就放行
  next()
})

export default router
